Bug 602512

Summary:	media-plugins/gst-plugins-vaapi[egl] requires gst-plugins-bad[opengl,-gles2]
Product:	Gentoo Linux	Reporter:	Cedric Sodhi <manday>
Component:	Current packages	Assignee:	GStreamer package maintainers <gstreamer>
Status:	RESOLVED FIXED
Severity:	normal	CC:	leio, manday
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Cedric Sodhi 2016-12-13 07:57:22 UTC

My goal in this case is to get best support on pure Wayland (without XWayland), where EGL is used. Mesa only supports GLES2 for EGL, not full GL. The typical USE flag setup would thus be

-opengl +egl +gles2

(although some maintainers consider all that a part of OpenGL which is then +opengl, as well)

Strangely, gst-plugins-bad has a constraint egl ( !gles2 ) which doesn't appear to make much sense to me in the first place (maybe someone could clarify this or is this a separate bug?). Second to that, egl support for gst-plugins-vaapi with the egl USE flag requires gst-plugins-bad[opengl] which in turn demands !gles2, as well.

I'm unsure as to what exactly is the bug here, perhaps just a set of contradictory terms. In any event, it appears to be impossible to get the correct EGL/GLES2 support on Wayland through these USE flags.

Comment 1 Pacho Ramos gentoo-dev

2016-12-14 11:54:55 UTC

I think the problem is in gst-plugins-bad

*** This bug has been marked as a duplicate of bug 525936 ***

Comment 2 Cedric Sodhi 2016-12-15 08:08:16 UTC

Are you sure about the gst-plugins-bad[opengl] requirement? I'm not sure that's covered there. I think the correct dependency of gst-plugins-vaapi[egl] should be gst-plugins-bad[egl].

Comment 3 Mart Raudsepp gentoo-dev

2017-01-20 08:26:01 UTC

Reopening this one as a reminder to myself to fully figure out the opengl/egl/gles2 USE flag story in general and in the gst-plugins-bad context and then possibly tweak what's needed (if anything) for bad, vaapi and more with the 1.10 bump to be done soon.

Comment 4 Mart Raudsepp gentoo-dev

2024-04-07 20:38:44 UTC

By now the main GL stuff is in gst-plugins-base instead.
For 1.22.11, I now made gles2 and egl the default, instead of opengl, albeit opengl commonly is enabled as well from desktop profiles. Upstream 1.24 iirc switches the default from opengl to gles2 when both are enabled.

gst-plugins-bad had transitional flags still, which I'm going to drop in a follow-up shortly.

gst-plugins-gtk mirrors the flags of gst-plugins-base due to the way it's built (detect which were used on gst-plugins-base and then uses the same stuff and deps).

I think we should be good for now.